People of Asian backgrounds are likely to exhibit cultural relativism leaning toward collectivism compared to individualism. The personal interactions within their self-identified cultural communities may closely relate to development of their perceived beliefs and subjective norms, which influence to act upon identified health behaviors (Ajzen, Albarracin & Hornik 2007). The investigators will develop a lay health worker (LHW) model that highlights the effects of culturally competent human and educational interactions on facilitating the Chinese-, Korean- and Vietnamese-American (CKV-A) community's active behaviors in hepatitis B screening, vaccination, and treatments. To develop an efficacious and effective LHW intervention that will contribute for creating a critical mass toward sustainable Chinese, Korean and Vietnamese (CKV) changes, our strategic approaches include as follows: